Collimator lens for diode lasers
CVI Melles Griot
830, 405 and 375 nm GLC parts are diffraction limited and corrected for spherical aberration, coma, astigmatism, and spherochromatism.
830, 405 and 375 nm GLC parts (except for GLC-50.0-20.0-830) have the same clear aperture for interchangeable use in collimating and focusing to a diffraction-limited spot.
GLC-2.0-2.0-780 is an aspheric single lens with a high numerical aperture for increased optical efficiency and minimal beam truncation.
All GLC parts are RoHS compliant.
These lenses are optimized for use without windows.
Typical diode laser window thicknesses range from 0.1 to 0.5 mm. If the numerical aperture of the collimating lens system is greater than 0.3, this window contributes an undesirable amount of spherical aberration and will degrade overall system performance.
Therefore when using a GLC-6.5-8.0-830 or GLC-8.0-8.0-830 lens with diodes having windows, you may insert the nominal window thickness as follows:
GLC-6.5-8.0-0.15-830 for window thickness up to 0.3 mm
GLC-6.5-8.0-0.30-830 for window thickness between 0.15 and 0.45 mm
GLC-8.0-8.0-0.15-830 for window thickness between 0.15 and 0.45 mm
